Detergent capsule



FIG. 1 is a front perspective view of a detergent capsule in accordance with my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a front elevational view thereof, the left side, right side and rear elevational views being identical. 

The ornamental design for a detergent capsule, as shown and described. 